David Poulin, holding his one-year-old grandson, Noah Poulin, stands beside his wife, Lisa, during a ceremony at Winthrop High School on Saturday afternoon. Winthrop High named its gym after Poulin, who coached and taught at the school for decades.

David Poulin, left, hugs Winthrop Athletic Director Joel Stoneton after a court-naming ceremony Saturday at the high school.

Winthrop senior forward Andrew Foster, left, tries to steal the ball from Carrabec junior guard Luke Carey during a game Saturday in Winthrop.

Winthrop senior forward Andrew Foster, left, and Carrabec junior forward Joel Gehrke tip off to start the first basketball game at Winthrop's newly named David J. Poulin Gymnasium on Saturday.

Winthrop teacher Dave Poulin speaks during a 2014 interview at Winthrop High School.

This Jan. 13, 1998 file photo shows Dave Poulin, Winthrop boys basketball coach, left, chatting with Madison coach Tom Maines before a game in Winthrop.

This February 17, 1997 file photo shows Winthrop boys basketball coach Dave Poulin at Augusta Civic Center.